Fixed stuff

Author: tdas

sql/core/src/test/java/test/org/apache/spark/sql/JavaDataFrameReaderWriterSuite.java

@@ -1,11 +1,25 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
 package test.org.apache.spark.sql;
 
 import java.io.File;
-import java.util.Arrays;
 import java.util.HashMap;
 
-import org.apache.spark.api.java.function.Function0;
-import org.apache.spark.sql.AnalysisException;
 import org.apache.spark.sql.SaveMode;
 import org.apache.spark.sql.SparkSession;
 import org.apache.spark.sql.test.TestSparkSession;

sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala

@@ -17,8 +17,6 @@
 
 package org.apache.spark.sql.test
 
-import java.io.File
-
 import org.scalatest.BeforeAndAfter
 
 import org.apache.spark.sql._